Effect of CNTs and nano ZnO on physical and mechanical properties of polyaniline composites applicable in energy devices
| Autor: | Alireza Shakeri, Vahid Saadattalab, Hamid Gholami |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Thermogravimetric analysis
Materials science Polyaniline CNT 02 engineering and technology Carbon nanotube 010402 general chemistry 01 natural sciences law.invention chemistry.chemical_compound law Zinc oxide lcsh:TA401-492 General Materials Science Thermal stability Fourier transform infrared spectroscopy Composite material General Conductive polymer Nanocomposite Polyaniline nanofibers 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology |
| Zdroj: | Progress in Natural Science: Materials International, Vol 26, Iss 6, Pp 517-522 (2016) |
| ISSN: | 1002-0071 |
| Popis: | Polyaniline was synthesized chemically in an acidic medium in the presence of Ammonium Peroxydisulphate (APS) as an oxidizing agent. PANI(Polyaniline) nanocomposites were prepared in the presence of various amount of carbon nanotube and zinc oxide (from 1 to 5 wt%) by solution casting method. The free-standing film of polyaniline and its nanocomposites were obtained by vaporization of solvent content. The composition, morphology and structure of the polymer and the nanocomposites were characterized by Fourier transform infrared spectroscopy FT-IR spectra, scanning electron microscopy (SEM) image and XRD pattern. In addition, thermal stability was studied by TGA analysis, electrical conductivity was measured by four-point probe technique and mechanical properties were studied by tensile strength test. The characteristic FTIR peaks of PANI were found to shift to lower wave number in nanocomposites due to the formation of H-bonding. XRD results revealed that the crystallinity of PANI was more noticeable after addition of nano-ZnO, while the intensity of the peaks increased by the addition of ZnO nanoparticles. Furthermore, TGA results showed that the decomposition of the nanocomposite was less than that of pure polyaniline which confirms the successful fabrication of products. Young's modulus and strength at break point were increased in the case of the nanocomposite, in addition, the electrical conductivity of the PANI/ZnO nanocomposite film was found to be smaller than that of the PANI film while CNTs increase the conductivity of polyaniline. |
| Databáze: | OpenAIRE |
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